Jacksonville's highways rendered this century-old grammar school unusable.

This isolated airport in the middle of the Everglades sees more alligators than planes.

A tribute to Ponce de Leon's supposed quest for eternal youth.

A giant 400-acre preserve in North Florida for displaced wolves.

The scuba diving training facility was named for the steam that rises from the cave's chimney.

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

Tiki luxury on Nob Hill.

The seamy, underground secrets of Portland's criminal past.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

Once featuring over 60 miniature replicas of famous Chinese locations, the Splendid China theme park was completely abandoned and is now mostly rubble.

Where monkeys run wild and the humans are caged.